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TRANSPLANT-INDUCED RECOVERY FROM 6-OHDA LESIONS OF THE NIGRO-STRIATAL DOPAMINENEURONS IN MICE Keiji Shimizu 1 , Nobuyuki Tsuda 1 , Yutaka Matsui 1 , Yutaka Okamoto 1 , Yasuyoshi Miyao 1 , Masanobu Yamada 1 , Takuya Ikeda 1 , Hiroshi Hatanaka 2 , Heitaro Mogami 1 1Department of Neurosurgery, Osaka University Medical School 2Laboratory of Neurochemistry, Mitsubishi-Kasei Institute of Life Science pp.623-628
Published Date 1988/7/1
DOI https://doi.org/10.11477/mf.1406206133
  • Abstract
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Attempts to reconstruct the damaged nigro-striatal pathway in experimental models of Parkin-son disease have thus far been carried out in ani-mals with neurotoxically induced dopamine defi-ciency. Our study established that unilateral 6- hydroxydopamine (6-OHDA) lesions of the nig-rostriataldopamine (DA) neurons produced a well-characterized functional asymmetry in the beha-vior of C 57BL/6 (H-2b) mice. The intraperitoneal administration of methamphetamine induced ipsi-lateral rotation at 7-20 turns/min. 11×106 syngenic DA-rich cells of embryonic ventral mesencephalon were stereotaxically transplanted in the caudate-putamen. A complete recovery of methampheta-mine-induced rotational response was produced around the 60-th day after the syngenic cell sus-pension graft. And a complete compensation of the rotational response was also brought about with the DA-rich cells from embryonic ventral mesencephalon (crown-rump length ; 10-13 mm) of allogenic C 3 H/HeN (H-2k) mice. The FACS W analysis revealed no H-2 (Kk and Iak) antigens before transplantation of these embryonic cells. Immunohistochemistry showed that the dopami-nergic fibers had grown predominantly into the ipsilateral caudate-putamen. These results provideevidence of integration of syngenic and allogenic grafts and host tissue. And the immunological response in the transplanted brain are under in-vestigation.


Copyright © 1988, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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